\begin{table}%t1
\caption{\label{tab:zpho}Accuracy $\sigma_{\Delta z/(1+z)}$ of the supernova photometric redshift $\zpho$.}
%\centering
\par
\begin{tabular}{lccccccc}
\hline\hline\noalign{\smallskip}
&  \multicolumn{2}{c}{Simulation} & \multicolumn{5}{c}{Data} \\
Performance& & & Spec. Ia& All Ia& Spec. Ia& All Ia& All Ia\\
criteria& $\zpho$\tablefootmark{a}& $\zpho$\tablefootmark{b} & $\zpho$\tablefootmark{a}& $\zpho$\tablefootmark{a}& $\zpho$\tablefootmark{b} & $\zpho$\tablefootmark{b} & $z_{\rm gal}$  \\
& \tiny{(1)} & \tiny{(2)} &  \tiny{(3)} &  \tiny{(4)} &  \tiny{(5)} &  \tiny{(6)} &  \tiny{(7)}  \\
\hline
$\sigma_{\Delta z/(1+z)}$ for $z<0.45$ &0.006 & 0.006 &0.018&0.019&0.014 & 0.016& 0.031 \\
$\sigma_{\Delta z/(1+z)}$ for $z>0.45$ &0.029 & 0.027 &0.024&0.027& 0.020 &0.025 & 0.037 \\
Outlier rate $\eta$ & 2.5\% & 1.0\%&2.0\% &3.1\%& 0.4\% & 1.4\% & 5.5\% \\
\hline
\end{tabular}
\tablefoot{Columns 1 and 2 are for simulated events, Cols.~3 to~6 for data. For comparison, Col.~7 indicates the accuracy of the photometric redshift of the host galaxy $\zgal$. The data sample contains 57 objects at $\zspe<0.45$ of which 50 are spectroscopically confirmed, and 232 at $\zspe>0.45$ including 191 spectroscopically confirmed SNe~Ia. Superscript \tablefoottext{b}{ if bounds and prior on redshift used (as explained in Sect.~\ref{sec:procedure}), \tablefoottext{a}  \textrm{otherwise}.}  }
\end{table}